All parts are original Tek items. All new parts are from Tek factory or service parts stock, used parts are carefully salvaged from Tek equipment. Where possible, we clean, test and restore any used parts as much as possible, but all used items are supplied as-is. IMPORTANT: there is no minimum order, but please see our FAQ for detailed shipping information world-wide.

Used parts are removed from Tek equipment, and in most cases are simply unplugged from sockets, not unsoldered. Where possible, we do a functional check on used parts, but all used items are supplied as-is. MFL means Main Frame Logic circuitKRS means Knob Readout System circuit.

IMPORTANT !Graphical logos and trademarks are the property of their respective owners, including Tektronix, Fluke, RCA, TI, GE, General Radio and Hewlett Packard, and are used here merely to unambiguously identify the products. Sphere Research IS NOT a factory authorized distributor for any of the product lines indicated.